What is the result when the configured RTT of an FCIP link is smaller than the measured RTT?

What is the result when the configured RTT of an FCIP link is smaller than the measured RTT?
A . The link might not be fully utilized.
B . The minimum available bandwidth for the link must be increased.
C . The link might be oversubscribed.
D . The TCP sliding window constantly resets.

Answer: A

Explanation:

The configured round-trip-time parameter determines the window scaling factor of the TCP connection. This parameter is only an approximation. The measured RTT value overrides the round trip time parameter for window management. If the configured round-trip-time is too small compared to the measured RTT, then the link may not be fully utilized due to the window scaling factor being too small.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/5_0/configuration/guides/ipsvc/nxos/ipsvc/cfcip.pdf